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| Hauptseite > Publikationsdatenbank > Contact mechanics for layered materials: Rubber film on hard substrate > print |
| Hauptseite > Publikationsdatenbank > Contact mechanics for layered materials: Rubber film on hard substrate > print |
| 001 | 1044413 | ||
| 005 | 20250912110141.0 | ||
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| 100 | 1 | _ | |a Persson, Bo |0 P:(DE-Juel1)130885 |b 0 |u fzj |
| 245 | _ | _ | |a Contact mechanics for layered materials: Rubber film on hard substrate |
| 260 | _ | _ | |a Melville, NY |c 2025 |b American Institute of Physics |
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| 520 | _ | _ | |a I consider the contact mechanics for a layered material, consisting of an elastically soft film glued to a hard substrate. I calculate the area of real contact for surfaces with fractal-like roughness and for surfaces with roughness in narrow length scale regions. For the fractal-like surfaces, when the product q0d of the film thickness d and the low cut-off wavenumber q0 of the surface roughness power spectrum satisfy q0d < 0.1, the effective modulus becomes very large. This results in large contact stresses, which can induce plastic deformation or wear, in particular during sliding contact. I also calculate the probability distributions of the normal and tangential stresses at the film-substrate interface. If the tangential (shear) stress is too high, the adhesive bond between the film and the substrate will break. I compare the thin-film contact mechanics problem with the Gent solution for a thin elastic sheet confined between two flat solid surfaces, and discuss the origin of the difference in effective elastic modulus. |
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| 773 | _ | _ | |a 10.1063/5.0274655 |g Vol. 162, no. 21, p. 214702 |0 PERI:(DE-600)1473050-9 |n 21 |p 214702 |t The journal of chemical physics |v 162 |y 2025 |x 0021-9606 |
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